Abstract
Summary
Ouabain was infused into the brachial artery of the dog forelimb for one hour and the resistances to blood flow through the skin and skeletal muscle vascular beds were calculated. Skin vascular resistance progressively increased whereas skeletal muscle resistance initially increased and then returned to the control value. This difference between the responses in these two parallel beds was entirely accounted for by changes in small vessel segments. There was no difference in the responses of the large arteries in the two beds.
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